Bulletin et mémoires de la Societé archéologique de Bordeaux, Volumes 9-10. This old publication cites Porcherion (Loir et Cher). It is alternatively shown as Porcherioux. Hope this helps. Regards, Tina
P.S. I am posting a Barbizon painting for potential research. I've had this painting for a long time but have not been able to identify the artist. It has a signature and an inscription for Fontainebleau. Any assistance would be very greatly appreciated.